Mounting for eyeglasses.



RA. MAROHER. MOUNTING FOR EYEGLASSES. APPLICATION FILED SEPT. 6, 1907.

Patented July 16, 1912.

FRAhlK A. MARCHER, OF LOS ANGELES, CALIFORNIA.

MOUNTING son EYEGLASSES.

citizen of the United States, residing at Los Angeles, in the county ofLos Angeles and State of California, have invented a .new and usefulMounting for Eyeglasses, of which the following is a specification.

' This invention has for its object the provision of means for unitingoptical rimless lenses with their mountings without weakening the lensesby drilling holes therethrough and employing screws as retainingmedium).

Another object of this invention is to prevent the accidental breakingof the lenses by the use of Screws which, when screwed home too tightly,chip the glass or destroy the holes previously drilled for-the receptionof V the screws, and to keep the metal ofjthe mounting out of contactwith the glass thereby to prevent chipping of. the lens as well as anylooseness of the union or'joint occasioned by much handling.

Anotherobject of the invention is to provide means for fastening lensesto mounts whereby drilling of holes and incidental breaking caused bysuch drilling is obviated and the metallic portionsof the mount alwayskept away from contact with the glass surfaces.

Specifically, my object is to provide an eyeglass construction in whichthe lenses are connected to the mountings by a' comparativcly large bodyof material which is plastic when applied, and which will harden andform a tomparatix ely perfect'bond between the lens and the mouldings;and my invention includes the combination with a lens having a seat anda mounting having a seat,

of hardened plastic material forming a bond between the seat of the lensand the seat of the mounting and fastening means passing crosswisethrough the cement body and the mounting and wholly out of contact withthe glass.

The accompanying drawings illustrate the invention.

Figure 1 is a front elevation of a lens showing the mount attached. Fig.2 is a :lragment'ary plan showing one-half of the studattached to thelens. Fig. 3 is an end elevation showing the stud in'mid-section and thecement' laterally in the slot of the lens. Fig. 4 is a section on line maz, Fig.

Specification of Letters Patent. Application filed Septemberfi, 1907.

Patented July 16, 1912. Serial No. 391,729.

2. Fig. 5 is a fragmentary plan," showing a modified method of securingthe stud in the body of cement by means of a wedge shaped tongue, thestud being shown partly in section. Fig. 6 is a fragmentary View of thelens showing a different form of slot. Fig. 7 IS a fragmentary planshowing a modified method of securing the stud in the body of cement bymeans of a corrugated tongue. Fig. 8 is a fragmentary section on line as-00", Fig. 1. Fig. 9 is a fragmentary plan. showing a modified method ofsecuring the stud in the body of cement by means of a straight tongue.

1 designates a lens provided with a slot 2; 3 is a furcated studprovided with two prongs or furcations 4t and 5. (3 designates rivetswhich extend through and formxa binding means to prevent the.

spreading of the furoations of the stud; when for any reason pressure isexerted on the same. The furcations 4L and 5 of the stud 3' are adaptedto fit over the two opposite surfaces of the lenses at a point where theslot 2 is provided, and the rivets 6 or members which span the distancebetween the furcationsare adapted to embed themselves in the cement 7placed in the slot 2 of the lens. In this manner the hardening orsolidification of the cement, in the slot of the lens and about therivets of the stud makes a firm and rigid union between the mounting andthe lenses of the eye-glass. The fitting of the mounting in the cementreceiving slot causes an expansion of the same laterally, so that theprongs or formtions 4 and 5 of the stud 3 are in contact with the cementbody instead of resting upon the surface ofthe lens. In this manner themounting or stud is so intimately united with the lens that verticalstrains and lateral strains are entirely absent. Instead of employingthe rivets 6 which connect the two prongs or furcations of the stud,acorrugated tongue 8 seen in Fig. 7, may be em ployed which tongue isprovided centrally of the furcations of the stud, and which upon theapplication of the mounting to the glass forces its way through thecement which upon hardening firmly holds the 'ing a securing means forthe mounting of reinforcing the glass, this means consisting of a wedgeof the lens is hardening.

shaped member seen :in Fig. 5, which extends centrally of the stud andinto the body of cement which is placed in the slot of the lens, in thismannermakingthe removal of the lens almost impossible withoutdestroyingthe same. y

The nature of the ceme nuor the various ingredients composing the sameis immaterial so long as the "solidification 'of the plastic mass formsas perfect a hold for the mount as a solid.

In some instances on account of the difference in thethickness of theedges of the lenses and fthe center, as in case of near sighted.concavedlenses, it may be necessary to employ a screw 11 seen in Fig. 8extending through an orifice provided in one of the furcations, andengaging a .screw threaded orifice in the otherfurcation, for thepurpose of drawing the furcations close against the lens while thecement in the slot The screw serves the further funetionof formingareinforcement about, which the cement hardens to rigidly unite the lensand stud.

The'shape of formation of the slot in the i lens is merely a matter ofchoice or calculaslot being toward the center of the lens,

' or plurality, of

tion to determine the particular form of slot which will form thestrongest medium for the cement filler that is to of retention be placedin the slot, consequently I do not limit myself to the slots shown inthe accompanying drawings.

In Fig. 6 I have illustrated one of those forms of slots which is wedgeshaped, as seen at 12, the greatest width of the wedge thereby causingthe body of cement to assume the shape of the wedge, and when the studtogether with its reinforcing struts is embedded in said body of cement,the consequent hardening of the cement makes the wedge practicallysolid, and the union between the lens and the If desired I may providein the slot a notch notches, as shown at 13, in order to increase therigidity of the cement hold, and to absolutely prevent the removal. ofthe cement body from its seat.

This invention is also applicable to use in connection with the unitingof metal substances with vitreous or other substances 0 a like natureand I therefore do not restrict this invention to lenses and mountstherefor,

it being understood that wherever a union or joint between metallic andsilicious substances is required, this invention may be used with equaleffect.-

In practical operation I have produced an eyeglass in which the lens tothe mount by a hardened plastic material forming a perfect bond betweena seat in the lens and a seat in the metallic frame; the body of theplastidmaterial being large mount almost perfect.

l l l is connected ceive incense or rivets shall be spread overconsiderable surface so that the plastic material will form a perfectbond with the stud. In other words, it is important to provide space andshape to receive a suflicient quantity of plastic material so that whenit hardens the plastic material will have sufficient strength by itselfto form the union between the metal and the glass. The rivets and prefeerably not less than a third of the width of the prongs alongpractically their", ent-1re of contact with the glass and any axispassing crosswise through such portions of the mount and through thebody of hardened plastic material will not pass through the glass, sothat pressure between the prongs by tightening the rivets, screws orstruts, or due to heat and cold and other causes, will pass through theplastic'mm terial and will not pass through the glass.

I am aware that rimless eyeglasses have been "connected to their mountsby inserting length are out cement between the metaland the glass, as

in the Patent to Dunham No. 82,930, dated Oct. 13, 1868; but in theseconstructions'the metal fits closely to the glass. and only acomparatively small quantity of cement can be used, and the strain ofthe metal comes directly upon the glass so as to cause much loss bybreaking the lenses. Consequently, I do not desire to claim broadly theidea of cementing lenses to frames.

'What I claim is e 1. The combination with a glass having a seat and ametallic frame having a seat, of hardened plastic material connectingthe seat of the glass to the seat of the frame, and fastening meanspassing crosswise through the metallic frame and through the body ofhardened plastic material and out of contact with the glass.

2. The combination with a glass having an elongated slot to form a seat,and a frame llffilflfi bifurcations and rivets con necting thebifurcations to form a seat, i hardened plastic material forming acomplete bond between the glass and the frame and connectingthe seat inthe glass to the seat inthe frame and forming a seat. to reand holdfastening means. and fasten- 7 through the metallic frame and throughthe body of hardened plastic material without contactmg filth tie glass.

ing means passing crosswise jee ' 3. In an eye-glass mount, thecombination In testimony whereof, I have hereunto set (if a lens havinga lateral slot in one end, my hand at Los Angeles, California, thishardened plastic material seated in said slot, 31st day of August 1907.

a bifurcated frame, seated 011 said plastic FRANK A. MARCHER. 5material, and fastening means connected to In presence ofthe frame andembedded in the plastic ma- I JAMES R. TOWNSEND,

terial in the slot. ANTON GLOETZNERL 4 Copies of this patent may beebtained for five cents each, by addressing the Commissioner of Patents;

Washingten, D. G.

